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fix(query): fix the null not returns problem.

This commit is contained in:
Haojun Liao 2022-08-03 19:17:07 +08:00
parent 4cd7af0ecf
commit c253ea73e1
1 changed files with 9 additions and 10 deletions
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19
source/libs/function/src/builtinsimpl.c
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@ -2953,25 +2953,24 @@ int32_t lastFunction(SqlFunctionCtx* pCtx) {
static void firstLastTransferInfo(SqlFunctionCtx* pCtx, SFirstLastRes* pInput, SFirstLastRes* pOutput, bool isFirst) {
SInputColumnInfoData* pColInfo = &pCtx->input;
int32_t start = pColInfo->startRowIndex;
pOutput->bytes = pInput->bytes;
TSKEY* tsIn = &pInput->ts;
TSKEY* tsOut = &pOutput->ts;
int32_t start = pColInfo->startRowIndex;
if (pOutput->hasResult) {
if (isFirst) {
if (*tsIn > *tsOut) {
if (pInput->ts > pOutput->ts) {
return;
}
} else {
if (*tsIn < *tsOut) {
if (pInput->ts < pOutput->ts) {
return;
}
}
}
*tsOut = *tsIn;
pOutput->isNull = pInput->isNull;
pOutput->ts = pInput->ts;
pOutput->bytes = pInput->bytes;
memcpy(pOutput->buf, pInput->buf, pOutput->bytes);
saveTupleData(pCtx->pSrcBlock, start, pCtx, pOutput);
@ -2998,7 +2997,6 @@ static int32_t firstLastFunctionMergeImpl(SqlFunctionCtx* pCtx, bool isFirstQuer
}
SET_VAL(GET_RES_INFO(pCtx), numOfElems, 1);
return TSDB_CODE_SUCCESS;
}
@ -3099,9 +3097,9 @@ int32_t lastRowFunction(SqlFunctionCtx* pCtx) {
TSKEY startKey = getRowPTs(pInput->pPTS, 0);
TSKEY endKey = getRowPTs(pInput->pPTS, pInput->totalRows - 1);
#if 0
int32_t blockDataOrder = (startKey <= endKey) ? TSDB_ORDER_ASC : TSDB_ORDER_DESC;
#if 0
// the optimized version only function if all tuples in one block are monotonious increasing or descreasing.
// this is NOT always works if project operator exists in downstream.
if (blockDataOrder == TSDB_ORDER_ASC) {
@ -3141,6 +3139,7 @@ int32_t lastRowFunction(SqlFunctionCtx* pCtx) {
}
#endif
SET_VAL(pResInfo, numOfElems, 1);
return TSDB_CODE_SUCCESS;
}